Pith Number

pith:FIED34E5

pith:2014:FIED34E5FIZ2O6YIR4WW6ZJEF4

not attested not anchored not stored refs pending

Extrinsic projective curves X^1 in P^2(C): harmony with intrinsic cohomology

Joel Merker (LM-Orsay)

arxiv:1402.1108 v1 · 2014-02-05 · math.AG · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FIED34E5FIZ2O6YIR4WW6ZJEF4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:00:01.691596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a083df09d2a33a77b088f2d6f65242f18ed370a4662ee7b45b197a00f4ce0b5

Aliases

arxiv: 1402.1108 · arxiv_version: 1402.1108v1 · doi: 10.48550/arxiv.1402.1108 · pith_short_12: FIED34E5FIZ2 · pith_short_16: FIED34E5FIZ2O6YI · pith_short_8: FIED34E5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FIED34E5FIZ2O6YIR4WW6ZJEF4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2a083df09d2a33a77b088f2d6f65242f18ed370a4662ee7b45b197a00f4ce0b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38b6c8f053d1c83ca75e7670d170dc3961edadd70fb97c25e605d441210c8ab2",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2014-02-05T18:06:36Z",
    "title_canon_sha256": "c37619e24e4e8dc85a59f1324317915a23b4842427b70ad6d807e5b9cd3afc72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1108",
    "kind": "arxiv",
    "version": 1
  }
}